package com.springcloud.common.web.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import java.time.Duration;

/**
 * <p>  redis配置 </p>
 *
 * @author mori
 * @since 10/29/2019 11:17 AM
 */
public class RedisConfiguration extends CachingConfigurerSupport {


    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory) {
        //对象的序列化
        RedisSerializationContext.SerializationPair valueSerializationPair
                = RedisSerializationContext.SerializationPair.fromSerializer(jsonRedisSerializer());
        //全局redis缓存过期时间
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofDays(1))
        //                .serializeKeysWith()
                .serializeValuesWith(valueSerializationPair);
        return new RedisCacheManager(RedisCacheWriter.nonLockingRedisCacheWriter(factory), redisCacheConfiguration);
    }

    @Bean(name = "stringRedisTemplate")
    public RedisTemplate<String, String> stringRedisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<String, String> stringRedisTemplate = new RedisTemplate<>();
        stringRedisTemplate.setConnectionFactory(connectionFactory);
        // 值采用json序列化
        stringRedisTemplate.setValueSerializer(jsonRedisSerializer());
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        stringRedisTemplate.setKeySerializer(new StringRedisSerializer());

        // 设置hash key 和value序列化模式
        stringRedisTemplate.setHashKeySerializer(new StringRedisSerializer());
        stringRedisTemplate.setHashValueSerializer(jsonRedisSerializer());
        stringRedisTemplate.afterPropertiesSet();
        return stringRedisTemplate;
    }

    public Jackson2JsonRedisSerializer<Object> jsonRedisSerializer() {
        // 使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）
        Jackson2JsonRedisSerializer<Object> jsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper om = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jsonRedisSerializer.setObjectMapper(om);
        return jsonRedisSerializer;
    }


}
